They are many easy ways to check lots of things on some engines others are not so easy . You might be surprised at the tools we have ,how and what is looked at . Dont believe it if you choose ,see ya at impound.

Fender flare update all were looked at and it is not hard to see if the tire is within the body . Only 1 car got a waver and have to get it fixed by their next event . Next topic aero all wings that were close were checked mesured and adjusted before passing, a couple of splitters were narrowed to pass . All in all great job champs for getting compliant ,Thank You .

It has been my experience that when the race is over most teams leave pronto ,and then teams that have broken are all ready gone . So your party base has dwindled before it even starts cook all day Fri so we can smell it while enjoying the tech line

I am not familiar with it ,are you talking about using it to run fuel through ,as from what I read it says nothing about being, petroleum, gas compatible . If using it as fuel line , which I would not recomend , it should be run inside of a solid tube . If you are talking about running your fuel hose through it I will check with Jay to make sure ..

I cannot mesure a picture but it looks like two might be a square ft , thats a maybe almost guess not official , and plastic is 3 point's a square foot . So MAYBE a set "4" would be 6 points MAYBE .
As far as will they hold up we had one crash tested at Sebring and it held up suprisingly well and stayed in place . It was mounted properly and after replacing suspension damage it stayed on and finished the last 5hrs of the race . If they perform that well they will be fine but if the track starts being littered with them and teams cant keep them attached or they break up they will not be allowed anymore... time will tell .